Who Makes Subaru Fuel Pumps?

Subaru is a well-known Japanese car manufacturer that produces high-quality vehicles known for their reliability and durability. One essential component of these cars is the fuel pump, which supplies fuel to the engine. However, many car owners may wonder who makes Subaru fuel pumps.

In this article, we will explore the manufacturing process of Subaru fuel pumps and the companies involved in their production. We will also discuss the importance of fuel pumps in a car and how to troubleshoot common fuel pump issues.

Key Takeaways

Here are some key takeaways from this article:

  • Subaru fuel pumps are manufactured by three main companies: Denso, Aisan, and TI Automotive.
  • Denso is a Japanese company and the largest manufacturer of automotive components in the world.
  • Aisan is also a Japanese company that produces fuel systems, engine components, and electronic control devices for automobiles.
  • TI Automotive is an American company that specializes in producing fluid storage, carrying, and delivery systems for various industries, including automotive.

Subaru Fuel Pump Overview

A fuel pump is an essential component of any car’s fuel system. It pumps gasoline or diesel from the fuel tank to the engine, where combustion takes place. The fuel pump must deliver a consistent and accurate amount of fuel at the correct pressure, regardless of the car’s speed or terrain.

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Subaru vehicles use electric fuel pumps located inside the fuel tank. These pumps are designed to operate at a high pressure and are controlled by the car’s engine control module. The fuel pump’s job is to deliver the right amount of fuel to the engine at the right time under various conditions.

Who Makes Subaru Fuel Pumps?

Subaru does not manufacture fuel pumps themselves, but rather outsources their production to a few reputable companies. The three main companies that make fuel pumps for Subaru vehicles are Denso, Aisan, and TI Automotive.

Denso Corporation

Denso Corporation is a Japanese company that produces various automotive products, including fuel pumps. It is the largest manufacturer of automotive components in the world, with over 200 subsidiaries and affiliates worldwide. Denso fuel pumps are known for their high-quality and reliability, and they are used in many top car brands worldwide. Denso fuel pumps are installed in various Subaru models, including the Impreza, Forester, and Crosstrek.

Aisan Industry Co. Ltd.

Aisan Industry Co. Ltd. is another Japanese company that produces fuel pumps for Subaru cars. Aisan is a leading manufacturer of fuel system products, engine components, and electronic control devices for automobiles. Aisan’s fuel pumps are known for their precise fuel delivery and consistent performance, making them a popular choice for Subaru vehicles.

TI Automotive

TI Automotive is an American company that specializes in producing fluid storage, carrying, and delivery systems for various industries, including automotive. TI Automotive produces fuel pumps for Subaru cars, including the WRX and STI models. TI Automotive’s fuel pumps are designed to operate at high pressures and provide consistent fuel delivery, making them ideal for high-performance vehicles.

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Troubleshooting Fuel Pump Issues

Fuel pump problems can cause various symptoms, including engine stalling, hard starting, and loss of power. Here are some common fuel pump issues and how to troubleshoot them:

Low Fuel Pressure

If the fuel pump is not delivering enough fuel pressure, the engine may not start, or it may stall or hesitate during acceleration. Check the fuel pressure regulator and fuel filter for clogs or damage. If these components are working correctly, the fuel pump may be faulty and require replacement.

High Fuel Pressure

If the fuel pressure is too high, it can cause the engine to run rich, resulting in poor fuel economy and increased emissions. Check the fuel pressure regulator for proper operation and replace it if necessary. If the regulator is working correctly, the fuel pump may be providing too much pressure and require replacement.

Noisy Fuel Pump

If the fuel pump is making unusual noises, it may be failing or not receiving enough voltage. Check the fuel pump relay and wiring for damage or loose connections. If these components are working correctly, the fuel pump may be failing and require replacement.

Conclusion

In conclusion, Subaru fuel pumps are manufactured by reputable companies like Denso, Aisan, and TI Automotive. These companies are known for producing high-quality and reliable fuel pumps that deliver consistent fuel delivery to the engine. If you experience any fuel pump issues, it’s essential to troubleshoot them promptly to prevent further damage to your car’s engine. By understanding the role of fuel pumps and the companies that produce them, you can make informed decisions when servicing your Subaru vehicle.

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Billy Covington

With a passion for all things automotive, Billy is our go-to expert on Subaru performance upgrades and modifications. He's been featured in several car magazines and blogs, and his extensive knowledge and expertise make him a valuable member of our team. When he's not working on cars, he enjoys playing guitar and writing music.

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